[Radiance-general] About angmap.cal

[Tarik Rahman]

Hi
Can anyone explain this statement in the angmap.cal file.
r = if(d,0.159154943*Acos(DDz)/d, 0);

Is the 0.159154943 value related to the focal length and field of view
parameters for Paul Debevec's light map .hdrs, so that if I want to map my own
light maps I must calculate the value of r using my camera parameters (well
simulated in Radiance vv and vh angles) ?

Thanks for any help

Tarik
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Tarik Rahman
PhD student, Institute of Perception, Action and Behaviour
School of Informatics
University of Edinburgh